Explain why it does not matter what letter or symbol u use to find an unknown number

If you could answer these your a life saver

*let m∠cob = 50°30’, m∠aob = 70° and m∠aoc = 20°30’. could point c be in the interior of ∠aob? why? a. point c could be the interior of aob but it is not the only case b. point c is the interior of aob c. point c is not the interior of aob d. the given is not possible for the plane geometry answer

Find │–14│ a. 14 b. –14 c. start fraction 1 over 14 end fraction